Original 255x4 O-ring replacement compatible with various AstralPool filters (Aster, Atlas, Vesubio, UVE, RapidPool, etc.).
Reference: 4404020116
This O-ring is used to seal the joint between the filter tank and the fixing ring where the cover goes (or the selector valve in the case of filters with the valve in the top or upper position).
It is essential that this lower washer is in good condition, and should be replaced with a new unit if the top of the filter is leaking (it is also important to check the cover gasket).
https://www.piscinayspa.com/se/pool-accessories/28/filtration/4500/o-ring-255x4-filter-astralpool-4404020116/FS4500Junta tórica 255x4 filtro AstralPool 4404020116https://www.piscinayspa.com/fotos/productos/3_fotoproducto1grande_4500.jpg9.459.45InStockAstralpoolSwimming Pool Accessories/Filtration/Spare Parts Filters4